⚡ Pushing the STM32F103 to its limits! In this video I show you how to achieve the maximum clock speeds - both officially supported and unsupported - on these microcontrollers.

🔍 I break down the clock tree from the RM0008 reference manual, then dive into direct register manipulation using C and assembly. Watch real-world demos comparing different clock configurations and discover whether Flash or RAM delivers better performance at extreme frequencies. Plus, meet the FCM32F103 clone and see how it stacks up.

💻 Get my bare metal code: https://piers.rocks/u/stm32bm

📚 Reference Manual: https://www.st.com/resource/en/reference_manual/rm0008-stm32f101xx-stm32f102xx-stm32f103xx-stm32f105xx-and-stm32f107xx-advanced-armbased-32bit-mcus-stmicroelectronics.pdf

Timestamps

00:00 Introduction
01:21 ⏱️ Clock system deep dive
09:29 🛠️ Bare metal implementation
18:46 🧪 Performance demonstrations
31:06 💭 Conclusions & takeaways

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